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Circularly Polarized Double Layered Printed Hemispherical Helical Antenna with a Parasitic Wire for Bandwidth Enhancement
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T. A. Latef
,
S. K. Khamas
Published/Copyright:
May 28, 2014
Abstract
A helical antenna that is printed on a layered dielectric hemisphere has been studied when a parasitic helical wire is incorporated in the structure. Experimental and theoretical results demonstrate that the 3 dB axial ratio (AR) bandwidth can be enhanced by approximately 100% for optimized length and position of the parasitic wire. The analysis has been implemented using the method of moments (MoM), and good agreement has been achieved between computations and measurements.
Keywords: helical antennas; spherical antennas; conformal antennas; moment method; circular polarization
Received: 2013-10-28
Published Online: 2014-5-28
Published in Print: 2014-7-1
©2014 by Walter de Gruyter Berlin/Boston
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Articles in the same Issue
- Frontmatter
- Circularly Polarized Double Layered Printed Hemispherical Helical Antenna with a Parasitic Wire for Bandwidth Enhancement
- Broadband CPW-fed Circularly Polarized Falcate-shaped Monopole Antenna for UWB Applications
- Design of Microstrip LPF with Sharp Cut-off Frequency and Wide Stopband
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- Mie Series for Electromagnetic Scattering of a Conducting Sphere Coated with Chiral Metamaterials
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- Performance Analysis of Beamforming in Fixed-gain AF Relay Networks with Asymmetric Correlated Fading Channels
- Efficient Service Delivery for High-speed Railway Communications Using MIMO and Access Control Technique
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Keywords for this article
helical antennas;
spherical antennas;
conformal antennas;
moment method;
circular polarization
Articles in the same Issue
- Frontmatter
- Circularly Polarized Double Layered Printed Hemispherical Helical Antenna with a Parasitic Wire for Bandwidth Enhancement
- Broadband CPW-fed Circularly Polarized Falcate-shaped Monopole Antenna for UWB Applications
- Design of Microstrip LPF with Sharp Cut-off Frequency and Wide Stopband
- A Miniaturized Branch Line Coupler with Harmonic Suppression
- Thermal and Structural Analysis of Co-axial Coupler used in High Power Helix Traveling-Wave Tube
- Mie Series for Electromagnetic Scattering of a Conducting Sphere Coated with Chiral Metamaterials
- Experiments on Tree Reflectivity at C, X, K and Ka-bands
- Performance Analysis of Beamforming in Fixed-gain AF Relay Networks with Asymmetric Correlated Fading Channels
- Efficient Service Delivery for High-speed Railway Communications Using MIMO and Access Control Technique
- Relay Selection Based Double-Differential Transmission for Cooperative Networks with Multiple Carrier Frequency Offsets: Model, Analysis, and Optimization
- Collaborative Wideband Compressed Signal Detection in Interplanetary Internet
